Wonder if you are still doing this research. I have Sarah Ann Linthicum as the daughter of Joseph Linthicum and Millie Thompson.Born about 1823.Her brother James T. Linthicum is my ancestor, husband of Harriet Bradbury and parents of my ggrandmother Mary Calia Linthicum.
The problem is I can't find anything in my notes to document her in this family, Except her marriage in Adams County, Illinois. Where her father was living at the time.
I have second marriage as J.C. Badger, no further info.